Which of the sets of ordered pairs represents a function? a = {(2, −2), (5, −5), (−2, 2), (−5, 5)} b = {(4, 2), (4, −2), (9, 3), (9, −3)} only a only b both a and b neither a nor b

A function will not have any repeating x valuesit can have repeating y values, but all the x values have to be different for it to be a function.

A is a function because all the x values are a different number
B is not a function because u have repeating x values...u have repeating 4's and repeating 9's